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Finding the Fourth Proportional to 349,189.28, 523,811.28 and 112,538.96

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Solution

The fourth proportional to 349,189.28, 523,811.28 and 112,538.96 is: 168,817.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,189.28 : 523,811.28 = 112,538.96 : x
  2. Step 2: Convert to fraction form
    349,189.28/523,811.28 = 112,538.96/x
  3. Step 3: Cross multiply
    349,189.28x = 523,811.28 × 112,538.96
  4. Step 4: Simplify right side
    349,189.28x = 58,949,176,687.47
  5. Step 5: Solve for x
    x = 58,949,176,687.47/349,189.28
  6. Step 6: Final answer
    x = 168,817.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.